Dr Dimari
As for white blood cells: You would get a pseudo infectious status, and lots of other issues. Further more, you increase the risk of autoimmunity due to the amount of dormant/bored white cells that wont be needed.
That would happen if you naturally had a higher than normal white blood cell count autoimmunity is a developmental problem with immature white blood cells.
If you used Transplanted White cells it would result in a "Graft vs host reaction". Which has very similar effects to an autoimmune disease but is different in origin. Wouldn't have any effect on clotting.
The effects your interested in including clotting and increased rates of healing are unique in that they are both positive feedback mechanisms which are rare in nature.
They have very important Stop commands in the physiology. Otherwise positive feedback could very well destroy the whole system. But might not be sufficient to stop them if such mechanisms were enhanced some other way. Think bicycle breaks attempting to stop a motorcycle.
Increased blood clotting reaction could result in effects mentioned before where you get random blood clots forming in the body.
A potential unfortunate side effect of increased rate of healing might well be tumors.